Thanks for the quick reply. Testing of this functionality is not of great complexity, you can just 'ls> beforeConnect.txt' and 'ls> afterConnect.txt' ('dir' for Windows) or something to like this.
Implementing the shell command, I think, ought to be done in the style of C:: B. Could you give an example of the style in the C:: B a call command shell? It would be just as well to include this fix into the mainline, they are more that the fields entering these commands have been around long enough.